Operating system: Mac OS X 10.14.2
Broken: 2.80 Beta, last download, Friday the 11.01
(example: 2.79b release)
(example: 2.80, edbf15d3c044, blender2.8, 2018-11-28, as found on the splash screen)
Short description of error
Ex: drawing an arc (half a circle fill) and delete the points which form its stright line, go back to Draw, make the same arc, the line points will be missing while the form is the same.
It's abstract, better check my Blend
Exact steps for others to reproduce the error
In the Blend file, I wanted to create a shadow below the jaws.
I left there the shadow below without the points.
You can delete it and draw an arc fill shadow. Enter then Edit mode and delete the Arc's straight line (points only).
Go back to Draw, delete this form. And draw another arc, go back to edit mode, and note that these points don't exist even if the form is the same.
NB - I actually could do it with my Mouse as I wasn't precise enough - I think this is also worth taking into consideration - How to draw precisely shadows, outlines, as it seems a light hand and pencil and pad are the only way to do it.
Accordingly, I draw an arc, which covers also the part of the mouth. I entered edit mode and played with the points. I deleted the points that formed the upper line (where the shadow should not be) - as this manipulation didn't work, I deleted and started again. The next form, presented the same form but without the points, so I could not even tweak them in the Edit mode.
In any case, the new form should not be conditioned by what was done before to another form in edit mode.